marvel



(No Model.) 3 Sheets-Sheet 1.

T. L. MARVEL.

ELEVATOR.

' No. 447,435. Patented Mar. 3, 1891.

(No Model.) I 3 Sheets-Sheet 2. v T. L. MARVEL. ELEVATOR.

No. 447,435. Patentd Mar. 3,1891.

Vik -142E525. IEJJELJ'EDI. I fi W (No Model.) 3 Sheets-Sheet 3.

T. L. MARVEL.

ELEVATOR.

No. 447,435. Patented Mar. 3, 1891.

QOOOODOOOOOOQDOOOO U ITED STATES PATENT OFFICE.

THEODORE L. MARVEL, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO \VILLIAM H.PHILLIPS, OF SAME PLACE.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 447,435,'dated March 3,1891.

Application filed October 27,1890. Serial No. 369,430- (No model.)

To aZZ whomt't may concern.-

Be it known that I, THEODORE LEONARD MARVEL, of Taunton, in the countyof Bristol and State of Massachusetts, have invented an ImprovedElevator, of which the following is a specification, reference being hadto the accompanying drawings, making a part hereof, in Which Figure 1 isa side elevation of one form of my elevator. Fig. 2 is a plan, partly insection, on line 2 2 of Figs. 1 and 3. Fig. 3 is a section 011 line 3 3of Fig. 2. Figs. 4 and 5 are sectional details showing the chain and itsbuckets and the supporting-wheels. Figs. 6 and 7 are elevations of oneof the buckets detached.

Elevators consisting of a slotted frame carrying an endless chain ofbuckets, mechanism for driving the bucket-chain, mechanism for movingthe slotted frame, with its chain of buckets, endwise, and mechanism fortipping it have long been known; and my invention relates to this classof contrivances, and consists, mainly, in mounting the bucket-carryingframe in a tipping frame, the side pieces of which extend across thebucket-carrying frame which moves endwise between these side pieces.This feature of my invention may of course be used with a variety ofmechanisms for driving the bucket-chain and for moving thebucket-carrying frame endwise, and it will also be clear that thetipping frame may be controlled by a variety of mechanisms; but otherfeatures of my invention relate to improvements in construction by whichI produce an elevator which is well adapted for both heavy and lightWork, which is durable, easily kept in repair, and readily handled.

In the drawings, A is a frame (composed of two side pieces a and propercross-pieces a) supported upon the main. shaft B. This frame A receivesand guides the frame D by means of guide-blocks a and rollers a A-though, as will be obvious, these blocks and rollers are mere detailswhich may be widely varied, the gist of the matter being that the frameD must be so mounted in the frame A that D may be moved endwise in A,but will tip or tilt as and whenever A is oscillated on shaft B.

be moved endwise, and by which the bucketcarrying frame can be tipped ortilted, as desiredsolidif1es, strengthens, and simplifies this class ofcontrivances, and also enables all the mechanismsnamel y, those fordriving the bucket-chain, for moving the bucketcarrying frame endwise,and for tilt-ing itto to be controlled by the attendant who runs theengine. In fact, elevators and the like with this feature of myinvention are practically so vastly superior to all others heretoforeknown as to constitute a class by themselves.

In the drawings 1 have shown the fra1ne= work F as mounted on wheels f,which rest upon tracks f, this being for convenience in moving theelevator from place to place; but these matters will obviously varylargely with varying circumstances and uses to which the endless chainof buckets is to be put, as will be clear without further explanation.

The engine G supplies power through its shaft g, and the driving-drums gg g g are coupled to shaft 9 at pleasure by means of suitable mechanism,(not shown,) the drawings being necessarily on a very small scale andtoo well known to need description. The main shaft B is driven by drumsg. Drums g are connected with frame D by the chains or ropes 11, passingover pulleys n, and serve to move frame D endwise. Drums g tdrive shafta, by which frame A. is oscillated. Drums g connect with ropes r bymeans of which frame F can be moved along tracks f.

The buckets d are connected to rollerchains d, supported by pulleys (Zand these chains d are driven by toothed wheels b on main shaft B.

In operation, for example, taking coal from a collier, the engineer,when the elevator and collier are in proper relation, will first moveframe D endwise and upward, (by connecting drums g with shaft 9 for amoment,) then tilt frame D, (by connecting drums with shaft 9,) so thatwhen moved endwise its lower end will enter the hold of the collierregulating this downward endwise motion of frame D by a proper brakeforming part of the mechanism (not shown) for connecting drums g withshaft g, and having thus brought the lower portion of the bucket-chaininto proper relation with the coal he will drive shaft B by connectingdrums g with shaft 9, the motion of shaft B and wheels 1), fast to it,carrying chains (1 and buckets cl about the pulleys (1. As the coal iselevated and discharged through spout (F, the engineer regulates thedescent of frame D as may be required.

The main advantages of my improved elevator are that all the mechanismsare readily under the control of the en gineer,tl1atthebucket-carryingframe D is held securely by frame A, through which it moves and by whichit is tilted, and that the power is readily applied and so effectivelythat the waste is much less than in any other contrivance for similarpurposes known to me.

\Vhat I claim as my invention is- The improved elevator above described,consisting of a supporting-frame, a main shaft jonrnaled in that frameand having sprocketwheels thereon, a tilting frame carried by the mainshaft, a frame movable endwise through the tilting frame, an endlesschain of buckets carried by the endwise-movable frame, said chainengaging with said sprocket-wheels, mechanism for driving'main shaft andbuckets, mechanism for moving the bucket-carrying frame endwise, andmechanism for controlling the tilting frame, all combined and operatingsubstantially as described.

THEO." L. MARVEL.

\Vitnesses:

.T. E. MAYNADIER, WM. H. PHILLIPS.

